Society for Military History: Founded in 1933, the Society publishes the quarterly Journel of Military History. The website provides access to the activities of the society, including a guide to graduate history programs (worldwide), and details of the societies upcoming conferences.

Home Office: Advice on protecting yourself from terrorism from the British government

MI5: The official web site of the British security service

Institute for counter terrorism an excellent Israeli site with a searchable database

The CIAThe official web site of the American Central Intelligence agency